Slow but steady seems to be the pattern emerging for me this year so far.
Started at 86kg at the end of 2016. Lost 2kg (mainly water) straight away after the first bit of fasting. Managed to keep that off, then it's been a steady 1kg per month, pretty much. So now hovering around 80kg, hopefully will be 79kg or less by the end of May.....which, on the face of it, if I keep at this, I should hit my 72kg target in November.
However, when I first started on 5:2 over four years (!) ago, I was 1kg lighter than I am currently. I got to my original (more modest) target weight within three months, losing 5kg to 74kg. I then aimed for 72kg, achieved that within a further month and a half, and pretty much kept that at that for the rest of the year.
In between times my weight has gone up and down like a yoyo.
The only differences are really that I'm older, I'm riding my bike relatively little, and probably working more hours than in 2013.
Still, I'll keep trying for slow and steady. Now it's finally getting a wee bit warmer, hopefully I'll get out on my bike a bit more too.